Re: [PATCH RFC 01/13] iommu: arm-smmu-qcom: Configure lpac device with split address space

From: Anna Maniscalco

Date: Tue Jul 07 2026 - 11:05:31 EST


On 7/6/26 5:00 PM, Dmitry Baryshkov wrote:
On Sun, Jul 05, 2026 at 09:13:35PM +0200, Anna Maniscalco wrote:
We want the context bank used by LPAC to use split address space just
like GFX.
Why?

I'll update the commit message in the next revision.

The reason is the same as GFX, we want split kernel and user address spaces so we can use per context page tables for userspace submissions.


Signed-off-by: Anna Maniscalco <anna.maniscalco2000@xxxxxxxxx>
---
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)


Best regards,
--
Anna Maniscalco <anna.maniscalco2000@xxxxxxxxx>